EP 4242708 A3 20231122 - POLARIZATION SPECTRAL FILTER, POLARIZATION SPECTRAL FILTER ARRAY, AND POLARIZATION SPECTRAL SENSOR
Title (en)
POLARIZATION SPECTRAL FILTER, POLARIZATION SPECTRAL FILTER ARRAY, AND POLARIZATION SPECTRAL SENSOR
Title (de)
POLARISATIONSSPEKTRALFILTER, POLARISATIONSSPEKTRALFILTERARRAY, UND POLARISATIONSSPEKTRALSENSOR
Title (fr)
FILTRE SPECTRAL DE POLARISATION, MATRICE DE FILTRES, ET CAPTEUR SPECTRAL DE POLARISATION
Publication
Application
Priority
- KR 20190171993 A 20191220
- EP 20211132 A 20201202
Abstract (en)
Provided is a polarization spectral filter, including: a first reflector and a second reflector disposed to face each other in a first direction; and a grating layer disposed between the first reflector and the second reflector. The grating layer includes a plurality of first grating elements and a plurality of second grating elements, the plurality of first grating elements and the plurality of second grating elements being alternately arranged in a second direction perpendicular to the first direction. The plurality of first grating elements include a first dielectric material having a first refractive index. The plurality of second grating elements include a second dielectric material having a second refractive index different from the first refractive index.
IPC 8 full level
G01J 3/02 (2006.01); G01J 3/26 (2006.01); G01J 3/28 (2006.01); G01J 4/04 (2006.01); G02B 5/20 (2006.01); G02B 5/30 (2006.01)
CPC (source: CN EP KR US)
G01J 3/0224 (2013.01 - EP); G01J 3/0259 (2013.01 - EP); G01J 3/26 (2013.01 - EP); G01J 3/2803 (2013.01 - EP); G01J 3/447 (2013.01 - CN); G01J 4/04 (2013.01 - EP US); G02B 1/04 (2013.01 - KR); G02B 5/0816 (2013.01 - CN); G02B 5/1819 (2013.01 - CN); G02B 5/20 (2013.01 - KR); G02B 5/203 (2013.01 - US); G02B 5/28 (2013.01 - CN); G02B 5/286 (2013.01 - US); G02B 5/288 (2013.01 - US); G02B 5/30 (2013.01 - KR); G02B 5/3008 (2013.01 - EP); G02B 5/3041 (2013.01 - EP); G02B 5/3083 (2013.01 - EP); G02B 27/288 (2013.01 - US); G02B 27/4233 (2013.01 - CN); G02B 27/4261 (2013.01 - CN); G01J 2003/2806 (2013.01 - EP); G01J 2003/2826 (2013.01 - EP)
Citation (search report)
- [XI] US 5726805 A 19980310 - KAUSHIK SUMANTH [US], et al
- [A] US 2019244993 A1 20190808 - YAMAGUCHI TETSUJI [JP], et al
- [A] US 2002080493 A1 20020627 - TSAI RUNG-YWAN [TW], et al
- [A] US 7426040 B2 20080916 - KIM HONG KOO [US], et al
- [X] EP 3546903 A2 20191002 - SAMSUNG ELECTRONICS CO LTD [KR]
- [E] EP 3771892 A1 20210203 - SAMSUNG ELECTRONICS CO LTD [KR]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3839454 A1 20210623; EP 3839454 B1 20231011; CN 113009706 A 20210622; EP 4242708 A2 20230913; EP 4242708 A3 20231122; JP 2021099485 A 20210701; KR 20210079824 A 20210630; US 11719951 B2 20230808; US 2021191141 A1 20210624; US 2023333397 A1 20231019
DOCDB simple family (application)
EP 20211132 A 20201202; CN 202011249999 A 20201110; EP 23188057 A 20201202; JP 2020206702 A 20201214; KR 20190171993 A 20191220; US 202017095477 A 20201111; US 202318336502 A 20230616